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Add 70/15 and 40/7

1st number: 4 10/15, 2nd number: 5 5/7

70/15 + 40/7 is 218/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 7 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 15 × 7 = 105,
    70/15 = 70 × 7/15 × 7 = 490/105
  3. Likewise, for the 2nd fraction, since 7 × 15 = 105,
    40/7 = 40 × 15/7 × 15 = 600/105
  4. Add the two like fractions:
    490/105 + 600/105 = 490 + 600/105 = 1090/105
  5. 1090/105 simplified gives 218/21
  6. So, 70/15 + 40/7 = 218/21
    In mixed form: 108/21

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